Apparatus and Method for Assigning Pci of Home Base Station

1. An apparatus for assigning a Physical Cell Identity (PCI) in an Operation, Administration, Maintenance (OAM) system, the apparatus comprising: a communication unit to receive a request for a PCI group from a Home eNodeB Gateway (HeNB GW); and a PCI group assignment unit to check geographical information of the HeNB GW, to check information on a first PCI group assigned to a neighboring HeNB GW neighboring the HeNB GW, and to assign a unique second PCI group to the HeNB GW, the PCI group assigned to the HeNB GW being different from the PCI group assigned to the neighboring HeNB GW, wherein an individual PCI from the second PCI group that is to be assigned by the HeNB GW to an HeNB is not contained in the first PCI group assigned to the neighboring HeNB GW as a result of the PCI group assignment from the OAM system to the HeNB GW of the unique second PCI group.

2. The apparatus of claim 1 , further comprising: a PCI group generator to distribute assignable PCIs and to generate a plurality of PCI groups, each of the plurality of PCI groups comprising a plurality of assignable PCIs.

3. The apparatus of claim 1 , further comprising: a storage unit to store PCI group information, geographical information of the neighboring HeNB GW, and the information on the first PCI group assigned to the neighboring HeNB GW.

4. An apparatus for assigning a PCI in an HeNB GW, the apparatus comprising: a communication unit to receive a request for a PCI from a Home eNodeB (HeNB); and a PCI assignment unit to assign a PCI to the HeNB, the PCI being unassigned among PCIs contained in an assigned PCI group, wherein the PCI that is to be assigned by the HeNB GW to the HeNB is not contained in a PCI group assigned to a neighboring HeNB GW as a result of an original PCI group assignment from an Operation, Administration, Maintenance (OAM) system to the HeNB GW of a unique PCI group.

5. The apparatus of claim 4 , further comprising: a PCI group request unit to request an OAM to assign a PCI group, and to receive the assigned PCI group from the OAM, the assigned PCI group being different from a PCI group assigned to a neighboring HeNB GW.

6. The apparatus of claim 4 , further comprising: a storage unit to store the assigned PCI group, and information on an assigned PCI among PCIs contained in the assigned PCI group.

7. A method for assigning a PCI in an Operation, Administration, Maintenance (OAM) system, the method comprising: receiving a request for a PCI group from an HeNB GW; checking geographical information of the HeNB GW; checking information on a first PCI group assigned to a neighboring HeNB GW neighboring the HeNB GW; and assigning a unique second PCI group to the HeNB GW, the PCI group assigned to the HeNB GW being different from the PCI group assigned to the neighboring HeNB GW, wherein an individual PCI from the second PCI group that is to be assigned by the HeNB GW to an HeNB is not contained in the first PCI group assigned to the neighboring HeNB GW as a result of the PCI group assignment from the OAM system to the HeNB GW of the unique second PCI group.

8. The method of claim 7 , further comprising: distributing allocable PCIs and generating a plurality of PCI groups, each of the plurality of PCI groups comprising a plurality of assignable PCIs.

9. A method for assigning a PCI in an HeNB GW, the method comprising: receiving a request for a PCI from an HeNB; and assigning a PCI to the HeNB, the PCI being unassigned among PCIs contained in an assigned PCI group, wherein the PCI that is to be assigned by the HeNB GW to the HeNB is not contained in a PCI group assigned to a neighboring HeNB GW as a result of an original PCI group assignment from an Operation, Administration, Maintenance (OAM) system to the HeNB GW of a unique PCI group.

10. The method of claim 9 , further comprising: requesting an OAM to assign a PCI group; and receiving the assigned PCI group from the OAM, the assigned PCI group being different from a PCI group assigned to the neighboring HeNB GW.

11. An apparatus for assigning a PCI of an HeNB, the apparatus comprising: an Operation, Administration, Maintenance (OAM) system to distribute allocable PCIs, to manage a plurality of PCI groups, and to assign a unique PCI group to an HeNB GW in response to a request for the PCI group, the assigned PCI group being different from a PCI group assigned to a neighboring HeNB GW; the HeNB GW to request the OAM to assign a PCI group, to receive the assigned PCI group from the OAM, and to assign a PCI to the HeNB in response to a request for the PCI, the PCI being unassigned among PCIs contained in the assigned PCI group, wherein the PCI that is to be assigned by the HeNB GW to the HeNB is not contained in a PCI group assigned to a neighboring HeNB GW as a result of the original PCI group assignment from the OAM to the HeNB GW of the unique PCI group; and the HeNB to request the HeNB GW to assign a PCI, and to receive the assigned PCI.